http://wiki.isibrno.cz/ 2026-05-13T23:01:33+0200 http://wiki.isibrno.cz/ http://wiki.isibrno.cz/lib/tpl/taratasy/images/favicon.ico text/html 2012-01-30T10:10:22+0200 Anonymous (anonymous@undisclosed.example.com) http://wiki.isibrno.cz/doku.php?id=perf:knowl:mri:acq:b1&rev=1327914622&do=diff Review in [1]: Although a number of methods have been proposed for image-based RF field measurements (1–17), many of them are difficult or impossible to use in vivo because they require serial scans at a variable transmitter power or pulse duration (1–7), have a high sensitivity to static magnetic field inhomogeneity (8,9), and result in high RF power deposition (1,3). These difficulties have been overcome by several B1 mapping techniques that are more suitable for in vivo applications text/html 2012-02-08T09:44:04+0200 Anonymous (anonymous@undisclosed.example.com) http://wiki.isibrno.cz/doku.php?id=perf:knowl:mri:acq:dsc&rev=1328690644&do=diff General information MRI acquisition sequences text/html 2012-03-08T17:41:59+0200 Anonymous (anonymous@undisclosed.example.com) http://wiki.isibrno.cz/doku.php?id=perf:knowl:mri:acq:seq&rev=1331224919&do=diff MRI sequences used for DSC SD-FLASH SD-FLASH (simultaneous dual fast low angle shot) was used for monitoring two slices paralelly. Imaging described in [1] was performed using a Siemens Magnetom Vision 1.5T MR scanner. First slice was placed to monitor artery carotid and second to monitor ROI. The tissue within ROI was excited first and readout last, the artery slice was excited last readout first. The location of carotid slice was selected from a set of neighbouring slices. These dataset was …